This one comes from my Evolutionary biology class.
Back in the day, a woman contracted HIV. This is unfortunate of course, but not super unusual. However, she blamed her boyfriend, a doctor, for giving her the virus.
Apparently, he had been giving her shots, claiming them to be "vitamin tonics" or whatever. And she accepted it as such. Uh...I don't know about you, but I'd be a bit concerned about this, especially when vitamins are so conveniently made in pill form.
Using the evolutionary history, forensics were able to determine that the strain of HIV that this woman had came from a tainted supply of blood/plasma/whatever, that the doctor had. Maybe he used it for research? I can't remember the details, but there were several samples of HIV that he had, but they could track down the specific sample that he used to infect his girlfriend.
All I have to say is WEIRD. Just...creepy and weird D:
However, out of this lesson comes another one. Evolution is badass and can be used for awesome things such as this. Awesome stuff, awesome stuff.
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